Open window guard



E. HOFFMANN OPEN wmnow GUARD Filed March 15, 1944 Z SheetS-Sheqt 2 N zf v Wk NW /9 Patented Oct. 16, 1945 OPEN wmnow GUARD Edward L. Hofimann, Chicago, 111; v

Application March 15, 1944, Serial No. 526,527 A,

4 Claims.,

This invention relates to a guard or grill structure adapted for disposition in a window frame when a sash is open, in order to prevent climbing of children on the window sill and falling of children and others from the window.

It is especially aimed to provide a novel construction which is adjustable so as to fit various windows and one which is capable of being moved from one window to another.

It is further aimed to provide a novel structure for attaching the guard to a window sill and which structure overlaps means which secures the sections of the guard in adjusted positions, rendering the same inaccessible for tampering on the part of children.

The more specific objects and advantages will become apparent from a consideration of the description following taken in connection with accompanying drawings illustrating an operative embodiment.

In said drawings:

v Figure 1 is a view in elevation fragmentarily showing a window frame, with a sash therein in raised position and with my improvement in place;

Figure 2 is a top edge view of the guard;

Figure 3 is a vertical sectional view taken on the line 33 of Figure 1;

Figure 4 is a sectional view taken on the line 4-4 of Figure 3;

Figure 5 is a plan or top edge view showing the sections of the guard detached and separated; and

Figure 6 is a scale section taken on the line 6-6 of Figure 3. I

Referring specifically to the drawings wherein like reference characters designate like or similar parts, a conventional window frame is fragmentarily suggested at ID, of which II is the sill, l2 are the sides, l3 a vertically-slidable sash, and I4 are stops on the sides l2 between which the sash is guided.

My invention constitutes a guard to prevent persions or objects falling from the window space when the sash I3 is raised as shown in Figure 1, the guard being designated 5 in its entirety.

Said guard has two similar relatively slidably adjustable frames or sections l6 shown detached in Figure 5. These sections have a side rail I1 and top and bottom l8 and 9, rigidly secured to the side rails and extending laterally therefrom with the top bars l8 of the two sections overlapping and the bottom bars I!) of the two sections overlapping. It will be noted that these bars have a multiplicity' of registrable openings 20 therethrough. Such sections 5 are adapted to be adjusted so that-the side-rails I! will occupy the tracks of the sash l3 between the stops M.

In addition to the upper and lower bars l8 and I9, sections l5 have any desired intermediate barrier construction such as the rods 2|.

The structure includes an intermediate vertical rail 22 which has holes 23 therethrough slidably mounting the bars or rods 2| and the same is also bifurcated at its upper and lower ends as at 24 and 25 loosely receiving the overlapped ends of the top bars l8 and lower bars l9, respectively.

The structure is adapted to be movably attached to the window frame but in such a manner that it may be readily removed and transferred to another window or windows when depart of children, a pin or other fastening 3| is passed through the bar 22 at holes provided on opposite sides of the bifurcation 25. Particular attention is called to the fact that this pin 3| is overlapped by the plate 26 so as to render its removal difiicult and the fact that it also passes through adjacent registering openings 20 of the bottom rails |9.so that when the structure is installed, as shown in the drawings, the sections !5 cannot be moved relatively or the guards detached, without first removing the nut of the bolt 3|) and the pin 3|.

In order to brace the structure at the top center from the window sash l3, metallic plates 32 are secured removably to opposite sides of the upright rail 22 as by means of a bolt 33 and when the latter is tightened, such plates 32 are held in a vertical position overlapping opposite sides of the sash |3 as best shown in Figure 3.

I claim:

1. A guard of the class described comprising relatively slidable sections, said sections including bars, a rail, said rail having openings in which the bars are slidably disposed, means to secure the rail and bars in adjusted position, and means engaged with the first means to secure the guard to a window sill or the like.

2. A guard of the class described comprising relatively slidable sections, said sections including bars, a rail, said rail having openings in which the bars are slidably disposed, means to secure the rail and bars in adjusted position, in

combination with means to anchor the guard to a window sill or the like including a plate, and means to secure the plate to the rail in overlapping relation to said first means.

3. A guard otthe class described comprising relatively slldable sections, said sections including bars, a rail, said rail having openings in which the bars are slidably disposed, means to openings, fastening means passing through ad jacent openings.

4. A guard of the class described comprising relatively slidable sections, said sections including bars, a rail, said rail having openings in which the bars are slidably disposed, means to secure the rail and bars in adjusted position, in combination with means to anchor the guard to a window sill or the like including a plate, means to secure the plate to the rail in overlapping relation to said first means, certain of the bars being at the top and bottom of the sections, the

top bars overlapping, the bottom bars overlapping, said rail being bifurcated at its ends to receive the adjacent overlapping bars, said ,overlapping bars having a multiplicity of registrable openings, fastening means passing through adjacent openings, the first-mentioned means comprising a pin overlapped by the plate, said pin occupying adjacent openings of the bottom bars, and brace plates on opposite sides of the rail to overlap opposite sides of the window sash.

EDWARD L. HOFFMANN. 

